高考英语完形填空训练003

It is interesting how NASA(美国航空航天管理局)chose their astronauts for landing them on the moon. They chose men 　1　the age of twenty and thirty-five. There were about fifty of them , Many were　2  air pilots.  3　were scientists with two or three degrees. NASA telephoned each man they were going to choose ;told him the plans and the 　4　they might get in. They then asked him if he was willing to be trained as an astronaut. “How could any man 　5　such an exciting job?”One of them said, “Dangerous? Of course. It’s dangerous 　6　most exciting”

The health and physical condition of 　7　was, of course, very necessary.  8  those in very good health and physical condition were chosen.

While being trained to be astronauts. they went through many　9 . They studied the star and the moon , and they also studied geology, the science of rocks. This was necessary 　10　astronauts would have to look for rocks on the moon. They would try to find rocks which might help to tell the 　11　of the moon. They were all 　12　to fly in helicopters （直升飞机）。These helicopters landed 　13　down to give them some experience of the way the spaceship would  14　land on the moon , They were also taught the 　15　facts about the conditions in space. They learnt all the technical details of the spaceships and rockets. They visited the scientists and engineers who 　16　them. They visited the factories where they were 　17 . They learnt how every 　18　of a space-ship and its instruments work. They also learnt every detail of ground-control　19 .

In a word , to be chosen as an astronaut. one must be in good health,  20　in science and good at piloting

　　KEY: 1－5 ABCAD  6－10 ACBCB　11－15 CBDDC 16－20 CBACD